Chemical sterilant for adult male dog population control with concomitant reduction in human dog-bite acquired rabies

Abstract

A chemical composition for use in controlling the population of free-roaming, sexually mature male dogs. The chemical sterilant is injected in a manner that the dog's appearance and secondary male sexual characteristics are preserved such that the dog maintains its position in the hierarchy of the free-roaming dogs while not contributing to the number of puppies produced. A reduction in the number of free-roaming dogs reduces the number of human victims of dog-bite acquired rabies. Because the appearance and nature of the sterilized dog is substantially unchanged, the chemical composition is acceptable to the human community that the dog habitats.

1 . The use of a chemical sterilant for adult male dog population control, said chemical sterilant comprising an aqueous solution of a mineral gluconate salt and an amino acid capable of forming the solution, said aqueous solution neutralized to a pH in the range of 6.0 to 7.5 for injection into a sexually mature dog, said sexually mature dog having scrotal testes with seminiferous tubules flowably connected to a head of an epididymis by tubuli recti, rete testis and ductuli efferentes, said sexually mature dog being free-roaming and occupying a position in a hierarchy of free-roaming dogs in a biological niche, said sexually mature dog being captured for sterilization in the biological niche, said sterilant injected into a dorsal cranial portion of each testis beside the head of the epididymis in an effective amount to achieve sterilization without substantially affecting the dog's male physical appearance or secondary sexual characteristics, said sexually mature dog immediately released back into the biological niche. 
     
     
         2 . The use of the chemical sterilant according to  claim 1  wherein the chemical sterilant is zinc gluconate neutralized with arginine. 
     
     
         3 . The use of the chemical sterilant according to  claim 2  wherein the zinc gluconate and the arginine are present in substantially equal molar amounts at a concentration in the range from about 0.05 M to about 2.0 M. 
     
     
         4 . The use of the chemical sterilant according to  claim 3  wherein the concentration of the zinc gluconate and the arginine is from about 0.05 M to about 0.3 M. 
     
     
         5 . The use of the chemical sterilant according to  claim 4  wherein the concentration of the zinc gluconate and the arginine is from about 0.01 M to about 0.2 M. 
     
     
         6 . The use of the chemical sterilant according to  claim 5  wherein the chemical sterilant contains 13.1 mg/ml zinc as zinc gluconate and 34.8 mg/ml l-arginine. 
     
     
         7 . The use of the chemical sterilant according to  claim 6  wherein the sexually mature dog's testes are no less than 10 mm and no more than 27 mm wide and wherein the chemical sterilant is injected in a volume of:
 0.2 mL per testis when the testis measures between 10-12 mm,   0.3 mL per testis when the testis measures between 13-15 mm,   0.5 mL per testis when the testis measures between 16-18 mm,   0.7 mL per testis when the testis measures between 19-21 mm,   0.8 mL per testis when the testis measures between 22-24 mm, and   1.0 mL per testis when the testis measures between 25-27 mm.